Writing a firmware control should be returning 1 if the control value changed, so these two patches add that. Though this is an ALSA requirement it is also useful for non-ALSA clients of cs_dsp to know if the control value changed, so the main handling is implemented in cs_dsp. TLV controls are specifically an ALSA thing so they are handled specially in wm_adsp. Simon Trimmer (2): firmware: cs_dsp: cs_dsp_coeff_write_ctrl() should report changed ASoC: wm_adsp: Return whether changed when writing controls drivers/firmware/cirrus/cs_dsp.c | 17 ++++++++++++----- sound/soc/codecs/wm_adsp.c | 27 ++++++++++++++++++--------- 2 files changed, 30 insertions(+), 14 deletions(-) -- 2.30.2
